We report the improvements made to our previously developed electrochemical cantilever (EC) sensor, where nanoporous
gold material is employed as working electrodes in microcantilever arrays, while combined counter-reference electrodes are
integrated on the chip. For a surface stress change of 1mN/m induced on the microcantilever, the cantilever deflects is 7.3 nm
at the free end, indicating high sensitivity to surface stress changes. The results suggest that the performance of the
electrochemical cell is stable. A much enhanced sensitivity in surface chemistry-driven actuation can be achieved by using
nanoporous gold with a high-surface area to volume ratio.

Original language

English

Title of host publication

Proceedings of MicroTAS

Volume

2011

Publication date

2011

Pages

1965-1967

State

Published

Conference

Conference

15th International Conference on Miniaturized Systems for Chemistry and Life Sciences